Display module and display device

Abstract

The embodiment of the application discloses a display module and a display device, the display module comprises a lamp plate and multiple groups of display units, the lamp plate is provided with a front surface; the multiple groups of display units are arranged on the front surface; wherein each group of the display units comprises multiple control devices and multiple pixel points, the pixel points are arranged around each control device, the control devices and the pixel points are arranged in equal number and are electrically connected one by one. Each control device is located between multiple pixel points, and only a short circuit needs to be arranged between the front surface of the lamp plate and the pixel points and the control devices, so that the connection of the pixel points and the control devices can be realized. Meanwhile, the circuits between each control device and each pixel point can be arranged in order and in turn around the control device, and the circuit arrangement between each control device and each pixel point is relatively convenient.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a display module and display device. Background Technology

[0002] In related technologies, display modules typically include pixels and control devices, with the control devices bonded to the pixels on a lamp board. Circuitry is required on the front side of the display module to achieve electrical connections between the pixels and control devices. However, improper placement of the pixels and control devices on the front side of the lamp board can result in complex circuitry. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a display module and display device that can simplify the circuitry of the lamp board.

[0004] The display module provided in this application adopts the following technical solution:

[0005] A display module, comprising:

[0006] The light panel has a front side;

[0007] Multiple display units are disposed on the front of the light panel; wherein each set of display units includes multiple controllers and multiple pixels, the pixels are arranged around each controller, the number of controllers and pixels are equal and they are electrically connected one by one.

[0008] According to some embodiments of the present invention, the display unit includes four control devices and four pixels. The four control devices are arranged together in a rectangular arrangement, and the four pixels are arranged around the control devices in a rectangular interval.

[0009] According to some embodiments of the present invention, the rectangular area formed by the four pixels covers the rectangular area formed by the four controllers, and each pixel is located at the corner of each controller.

[0010] According to some embodiments of the present invention, a plurality of pads are provided on the front side of the lamp board, the pads are electrically connected to the controller, and the coverage area of ​​each pad on the front side of the lamp board is set between 900 square micrometers and 10,000 square micrometers.

[0011] According to some embodiments of the present invention, a plurality of pads are provided on the front side of the lamp board, the pads are electrically connected to the controller, and the spacing between adjacent pads is set between 30 micrometers and 100 micrometers.

[0012] According to some embodiments of this utility model, the pixel and the control device are both independent devices.

[0013] According to some embodiments of the present invention, a solder pad is provided on the front side of the lamp board, the solder pad is provided with a contact point, and the contact point is configured to melt to connect with the pin of the controller.

[0014] According to some embodiments of this utility model, the contact point is a tin-silver alloy.

[0015] According to some embodiments of the present invention, the pixel includes a red LED chip, a green LED chip, and a blue LED chip.

[0016] This application also discloses a display device, including the aforementioned display module.

[0017] Secondly, this application also discloses a display device, including the aforementioned display module.

[0018] As can be seen from the above technical solution, this utility model has the following advantages: The multiple controllers and pixels in each display unit are arranged in the aforementioned manner, meaning each controller is located between multiple pixels. Therefore, the multiple controllers and pixels can be compactly arranged on the front of the light panel. Furthermore, with each controller located between multiple pixels, only a short circuit is needed on the front of the light panel between the pixels and the controllers to achieve connection between the pixels and the controllers. Additionally, the circuits between each controller and each pixel can be arranged orderly and sequentially around the controller, making the circuit layout between each controller and each pixel more convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a display module disclosed in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of a display device disclosed in an embodiment of this application. Detailed Implementation

[0022] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] This application discloses a display module 10, please refer to... Figure 1 The system includes a light panel 100 and multiple display units 200, which are respectively disposed on the front side 110 of the light panel 100. Each display unit 200 includes multiple controllers 210 and multiple pixels 220. The pixels 220 are arranged around each controller 210. The number of controllers 210 and pixels 220 are equal and they are electrically connected to each other.

[0026] It is understandable that the multiple controllers 210 and multiple pixels 220 of each display unit 200 adopt the above-described arrangement, that is, each controller 210 is located between multiple pixels 220. Therefore, the multiple controllers 210 and multiple pixels 220 can be compactly arranged on the front surface 110 of the lamp board 100. Simultaneously, since each controller 210 is located between multiple pixels 220, only a short circuit 120 is needed on the front surface 110 of the lamp board 100 between the pixels 220 and the controllers 210 to achieve the connection between the pixels 220 and the controllers 210. Furthermore, the circuits 120 between each controller and each pixel 220 can be arranged orderly and sequentially around the controller 210, making the arrangement of the circuits 120 between each controller and each pixel 220 relatively convenient.

[0027] Furthermore, each control device 210 is located between multiple pixels 220 to be electrically connected to each pixel 220. This arrangement has several advantages: First, it reduces product size and optimizes structural design, facilitating a reduction in pixel pitch: This layout eliminates the need for a large, dedicated mounting area for the control devices 210, effectively saving board space. Second, this design significantly reduces the physical size of pixel units, driving a continuous reduction in pixel pitch and creating conditions for high-density, high-partition displays. For example, in displays with a pixel pitch of less than 2 mm, this layout combined with a high line scan design allows for more pixel components to be accommodated per unit area. Third, it enables thinner and lighter terminals: For products with stringent size requirements, such as wearable devices and mini displays, arranging the control devices 210 between multiple pixels 220 reduces the space occupied by the peripheral circuitry 120, allowing the lamp board 100 to be made smaller and more compact, making the terminal product more in line with the market demand for thinner and lighter designs. Secondly, it enhances display performance and ensures image quality: It enables precise control and independent adjustment. This layout allows the controller 210 to closely control multiple pixels 220. For example, some solutions can achieve single-point control, allowing each pixel 220 to independently display different colors and brightness. This not only accurately reproduces image colors, presenting richer color levels and delicate image details, but also easily achieves complex dynamic effects such as flowing water and gradients, enhancing the visual experience. It also reduces signal and brightness loss. The shorter distance between the controller 210 and the pixels 220 reduces delays and attenuation in the control signal transmission process, allowing for more timely refresh of pixel status and ensuring smooth, lag-free display. Furthermore, compared to long-distance driving, close-range driving reduces brightness loss, and when combined with static driving, it also avoids screen flicker, making the display more stable. Thirdly, it reduces production and maintenance costs: This layout reduces the number of traces on the lamp board 100, simplifying the wiring process, reducing the risk of production failures such as short circuits and open circuits due to complex wiring, and also reducing the cost associated with increasing the number of layers on the lamp board 100. Furthermore, the reduced number of circuits and components makes troubleshooting and repair easier when products malfunction, lowering maintenance costs. Fourth, it enhances adaptability and improves development efficiency: This layout is highly adaptable, easily handling display scenarios with dozens or even thousands of 220 pixels through cascading control and other methods. For example, in display scenarios requiring a large number of high-brightness 220 pixels, such as 220 pixel billboards and colored traffic signs, it not only meets the needs of large-scale pixel control but also accelerates project development thanks to its simple circuit design. At the same time, the streamlined circuit and component design simplifies product debugging, further improving project development and production efficiency.

[0028] In some embodiments, please refer to Figure 1The display unit 200 includes four control devices 210 and four pixels 220. The four control devices 210 are arranged in a rectangular arrangement, more specifically, the four control devices 210 are compactly disposed on the front surface 110 of the lamp panel 100, with a small spacing between them. The four pixels 220 are arranged in a rectangular interval around the control devices 210. In other possible embodiments, each display unit 200 may also include six control devices 210 and six pixels 220, or eight control devices 210 and eight pixels 220. It is understood that each display unit 200 includes four control devices 210 and four pixels 220, and with the above arrangement, there is sufficient space around the four control devices 210. Therefore, multiple sets of circuits 120 can be conveniently integrated on the front surface 110 of the lamp panel 100, and each set of circuits 120 is used to electrically connect each control device 210 and pixel 220.

[0029] Furthermore, the rectangular area formed by the four pixels 220 covers the rectangular area formed by the four controllers 210. More precisely, the two rectangular areas are centered, and each pixel 220 is located at the corner of each controller 210 facing upwards. This arrangement further provides a larger space between each pixel 220 and its corresponding controller 210 for the arrangement of the circuit 120.

[0030] In some embodiments, please refer to Figure 1 Each of the control devices 210 is provided with a plurality of pads on the front side 110 of the lamp board, and the coverage area of ​​each pad on the front side 110 of the lamp board is between 900 square micrometers and 10,000 square micrometers; and each of the control devices 210 is provided with a plurality of pads on the front side 110 of the lamp board, and the spacing between adjacent pads is between 30 micrometers and 100 micrometers.

[0031] Specifically, the coverage area of ​​the pads on the front side of the lamp board 100 is set between 900 square micrometers and 10,000 square micrometers, and the spacing between adjacent pads is set between 30 micrometers and 100 micrometers. Therefore, the size of the pads can be set sufficiently small, and the spacing between adjacent pads can also be set sufficiently small, allowing the controller 210 to be packaged using a chip-level packaging structure. Meanwhile, the pixel 220 can adopt common packaging methods, such as through-hole packaging or surface-mount device packaging.

[0032] Understandably, the controller 210 occupies less space on the lamp board 100, and the pads can be compactly located around the controller 210, saving application space on the lamp board 100. Simultaneously, the controller 210 can be packaged using a chip-level packaging structure, while the pixel 220 can use a common packaging structure. Therefore, the controller 210 and pixel 220 can be packaged independently and then bonded to the lamp board 100. The independent packaging structure of the controller 210 and pixel 220 not only saves on the material cost of the packaging substrate but also, because the controller 210 and pixel 220 are discretely integrated on the lamp board 100, the bonding between them and the manufacturing yield is removed, indirectly saving rework costs.

[0033] In some embodiments, please refer to Figure 1 Pixel 220 and controller 210 are both independent devices, that is, pixel 220 and controller 210 are independently packaged and disposed on the lamp board 100. Specifically, pixel 220 includes red LED chip, green LED chip and blue LED chip. The three LED chips of the three light-emitting colors are integrated and packaged into one device, and by controlling the brightness ratio of the three LED chips, the pixel can emit different colors of light after mixing.

[0034] It is understandable that since pixel 220 and controller 210 are separate components, when either pixel 220 or controller 210 is damaged, during the repair of the lamp board 100, the operator only needs to repair the damaged pixel 220 or controller 210, reducing the repair difficulty of the lamp board 100 and lowering costs. If pixel 220 and controller 210 were packaged as a single unit, when either pixel 220 or controller 210 is damaged, both pixel 220 and controller 210 would require maintenance, which could easily lead to higher costs.

[0035] In some embodiments, please refer to Figure 1 Each of the aforementioned control devices 210 has corresponding pads on the front side 110 of the lamp board. Before the pins of the control devices 210 are connected to the pads, the pads have pre-set contact points. These contact points are configured to melt at high temperatures to connect with the pins of the control devices 210. The contact points are made of a tin-silver alloy. By pre-setting these contact points, when the pins of the control devices 210 are soldered to the pads, compared to the common method of applying solder paste to the surface of the pads using printing, which leads to excessive solder paste diffusion, this application uses pre-set contact points. The contact points do not expand excessively during melting, thus ensuring that the pins of the control devices 210 can be soldered to smaller pads, thereby ensuring that the control devices 210 can adopt a chip packaging structure.

[0036] This application also discloses a display device 20, including the aforementioned display module 10.

[0037] It is understood that the display device 20 adopts the aforementioned display module 10. The multiple controllers 210 and multiple pixels 220 of each group of display units 200 in the display module 10 are arranged as described above, i.e., each controller 210 is located between multiple pixels 220. Therefore, the multiple controllers 210 and multiple pixels 220 can be compactly arranged on the front surface 110 of the lamp board 100. Simultaneously, since each controller 210 is located between multiple pixels 220, only a short circuit 120 is needed between the pixels 220 and the controllers 210 on the front surface 110 of the lamp board 100 to achieve the connection between the pixels 220 and the controllers 210. Furthermore, the circuits 120 between each controller and each pixel 220 can be arranged orderly and sequentially around the controller 210, making the arrangement of the circuits 120 between each controller and each pixel 220 relatively convenient.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A display module, characterized in that, include: The light panel has a front side; Multiple display units are disposed on the front of the light panel; wherein each set of display units includes multiple controllers and multiple pixels, the pixels are arranged around each controller, the number of controllers and pixels are equal and they are electrically connected one by one.

2. The display module according to claim 1, characterized in that, The display unit includes four control devices and four pixels. The four control devices are arranged together in a rectangular arrangement, and the four pixels are arranged around the control devices in a rectangular arrangement with intervals.

3. The display module according to claim 2, characterized in that, The rectangular area formed by the four pixels covers the rectangular area formed by the four controllers, and each pixel is located at the corner of each controller.

4. The display module according to claim 1, characterized in that, The front side of the lamp board is provided with multiple pads, which are electrically connected to the control device. The coverage area of ​​each pad on the front side of the lamp board is set between 900 square micrometers and 10,000 square micrometers.

5. The display module according to claim 1, characterized in that, The front side of the lamp board is provided with multiple pads, which are electrically connected to the controller. The spacing between adjacent pads is set between 30 micrometers and 100 micrometers.

6. The display module according to claim 1, characterized in that, The pixels and the control device are both independent devices.

7. The display module according to claim 1, characterized in that, The front side of the lamp board is provided with pads, and the pads are provided with contact points, which are configured to melt to connect with the pins of the controller.

8. The display module according to claim 7, characterized in that, The contact point is a tin-silver alloy.

9. The display module according to claim 1, characterized in that, The pixels include red LED chips, green LED chips, and blue LED chips.

10. A display device, characterized in that, Includes the display module as described in any one of claims 1 to 9.

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